class MyDateFormat {
  static const String longLiteralDate = 'yyyy年M月d日';
  static const String longDate = 'yyyy-MM-dd';
  static const String yearMonth = 'yyyy-MM';
  static const String shortDate = 'MM-dd';
  static const String longTime = 'HH:mm:ss';
  static const String shortTime = 'HH:mm';
  static const String longDateTime = 'yyyy-MM-dd HH:mm:ss';
  static const String shortDateTime = 'yyyy-MM-dd HH:mm';
}
